From 30084fbd1caa4b2e1a336fcdef60b68129d1d8f8 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 2 Oct 2007 14:13:08 +0200 Subject: sched: fix profile=sleep fix sleep profiling - we lost this chunk in the CFS merge. Found-by: Mel Gorman Signed-off-by: Ingo Molnar --- kernel/sched_fair.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'kernel') diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index c9fbe8e73a4..67c67a87146 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -639,6 +639,16 @@ static void enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se) se->block_start = 0; se->sum_sleep_runtime += delta; + + /* + * Blocking time is in units of nanosecs, so shift by 20 to + * get a milliseconds-range estimation of the amount of + * time that the task spent sleeping: + */ + if (unlikely(prof_on == SLEEP_PROFILING)) { + profile_hits(SLEEP_PROFILING, (void *)get_wchan(tsk), + delta >> 20); + } } #endif } -- cgit v1.2.3